PT-2023-32566 · Unknown · Mattermost

Doyensec · Published 2023-11-27 · Updated 2023-12-01 · CVE-2023-6202

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Mattermost (affected versions not specified)

Description The issue is related to improper authorization in the "/plugins/focalboard/api/v2/users" endpoint, allowing an attacker who is a guest user and knows the ID of another user to obtain their information, such as name, surname, and nickname, via Mattermost Boards.

Recommendations As a temporary workaround, consider restricting access to the "/plugins/focalboard/api/v2/users" endpoint for guest users until a patch is available. Avoid using the user ID in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2023-6202

GHSA-85JJ-C9JR-9JHX

Affected Products

Mattermost

References · 8

• https://mattermost.com/security-updates · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-6202 · Security Note
• https://osv.dev/vulnerability/GHSA-85jj-c9jr-9jhx · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-6202 · Vendor Advisory
• https://github.com/mattermost/mattermost · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6202 · Note
• https://t.me/cvenotify/61223 · Telegram Post
• https://t.me/cvenotify/61950 · Telegram Post